Right, but according to one commenter "This works once you boot. But only until the computer goes to sleep. Waking it back up turns the built-in display back on

Right, but according to one commenter "This works once you boot. But only until the computer goes to sleep. Waking it back up turns the built-in display back on." and according to another one there is a three step process which must be implemented on every single boot. So, wouldn't you agree when I say that Apple just doesn't give you the option?